function Cookiemanager() {
	this.name = 'cookieManager';
	this.defaultExpiration = this.getExpiration();
	this.defaultDomain = window.location.host.replace(/((^\w+:\/\/[\w-]+\.)|\/)/, '');
	this.defaultPath = '/';
	this.cookies = new Object();
	this.expiration = new Object();
	this.domain = new Object();
	this.path = new Object();
	//if(navigator.userAgent.indexOf('Opera') == -1) {
	window.onunload = new Function (this.name+'.setDocumentCookies();');
	//} else {
	//	window.onunload = new Function (Cookiemanager.prototype.setDocumentCookies());
	//}
	this.getDocumentCookies();
}

Cookiemanager.prototype.getExpiration = function() {
	var date = new Date();
    date.setTime(date.getTime()+(7*24*60*60*1000));
	return date.toGMTString();
}

Cookiemanager.prototype.getDocumentCookies = function() {
	var cookie,pair;
	var cookies = document.cookie.split(';');
	var len = cookies.length;
	for(var i=0;i < len;i++) {
		cookie = cookies[i];
		while (cookie.charAt(0)==' ') cookie = cookie.substring(1,cookie.length);
		pair = cookie.split('=');
		this.cookies[pair[0]] = pair[1];
	}
}

Cookiemanager.prototype.setDocumentCookies = function() {
	var expires = '';
	var cookies = '';
	var domain = '';
	var path = '';
	for(var name in this.cookies) {
		expires = (this.expiration[name])?this.expiration[name]:this.defaultExpiration;
		path = this.defaultPath;
		domain = this.defaultDomain;
		if(name == 'fontSize') {
			//var cookies = name + '=' + this.cookies[name] + '; expires=' + expires + '; path=' + path + '; domain=' + domain;
           	var cookies = name + '=' + this.cookies[name] + '; expires=' + expires + '; path=' + path + ';';
           	if(cookies != '') {
				document.cookie = cookies;
		   	}
        }
	}
	return true;
}

Cookiemanager.prototype.getCookie = function() {  
	return (this.cookies['fontSize'])?this.cookies['fontSize']:false;
}

Cookiemanager.prototype.setCookie = function(cookieValue) {
    if(!isNaN(cookieValue)) {
    	this.cookies['fontSize'] = parseInt(cookieValue);
    	this.expiration['fontSize'] = this.getExpiration();
    	this.domain['fontSize'] = window.location.host.replace(/^[\w-]+\./, '');
    	this.path['fontSize'] = this.defaultPath;
    	return true;
    }
}

var cookieManager = new Cookiemanager();